This is BOSCH Boschhammer - GBH 5-40 D Professional
1100W Rotary Hammer / Demolition Hammer
What is it use for?
This is heavy-duty construction drill, not normal hand drill. It's for breaking and drilling concrete.
2 main functions:
1. Hammer Drilling - Drills big holes in hard concrete, block, rock. Up to 40mm diameter. For anchor bolts, plumbing pipes, electrical pipes going through wall.
2. Chiselling / Breaking - With the red switch, you set it to hammer only. Then you put flat chisel inside and use it to break concrete floor, remove tiles, remove plaster, demolish small walls, cut chases for pipes.
Details from your plate:
• Model: GBH 5-40 D 3 611 B69 000
• Power: 1100W, 5.7A, 230V